Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. William Gerard Welker Jr., MS, PA-C
Physician Assistant in Monument, CO · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1649248188
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Registry record
Entity type Individual (Type 1)
Name Mr. William Gerard Welker Jr.
Credential MS, PA-C
Sex Male
Practice address 4620 Redstone Ridge Rd, Monument, CO, 80132
Phone (561) 818-8031
Fax (719) 481-9192
Enumeration date Mar 10, 2006
Last updated in NPPES May 4, 2021
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA3011 (FL) Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA2919 (CO) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 290648100 | Medicaid | FL | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What specialty is William Welker?
William Welker is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-04.